A driving support apparatus includes an image acquisition that acquires a captured image, a calculator that calculates distance and relative speed between a subject vehicle and a following vehicle, and distances and relative speeds between following vehicles; an evaluator that evaluates a degree of risk caused when the subject vehicle changes a lane to the adjacent lane with respect to the following vehicles on a basis of the distances and the relative speeds; and a display controller that creates support information on the degree of risk associated with a lane change in association with road sections based on positions at which the following vehicles are present, and displays a support image in which a created support information is superimposed on the captured image at a corresponding position on the display portion.